import pymysql

class DB:
    def __init__(self):
        self.conn = pymysql.connect(host='localhost',port=3306,user='root',password='mysql',charset='utf8',db='workf',cursorclass = pymysql.cursors.DictCursor)
        self.cursor = self.conn.cursor()

    #添加，修改，删除
    def insert(self,sql):
        self.cursor.execute(sql)
        self.conn.commit()


db1 = DB()

